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Valiant, Dart, etc. engine list with horsepower ratings

Information collected by Joseph Newhouse and used by permission. He wrote: “My primary source of information is Chrysler-issued specifications from the National Automotive History Collection. However, the 1962 information is absent from the NAHC archives, so I've assumed that the 1961 engines continued unchanged for 1962. The information on the 1962 413 was provided by Bob Beaudin.”

225 slant six (3.7 litres)

Slant six (U.S. specifications)

Horsepower and torque figures prior to 1972 are SAE gross (measured without any accessories connected to the engine). Horsepower and torque figures from 1972 and after are SAE net (measured with all accessories connected to the engine). See allpar’s exhaustive slant six page.

The slant six was engineered with the Valiant in mind; the short, low hood required the slanting of the engine (to minimize vertical space) and the side-mounted water pump (to minimize length). Putting the engine on a slant worked well; it eased servicibility and allowed for a highly efficient intake manifold. All that was needed was left was a fuel delivery system that truly met its needs — the Hyper Pack or, for ordinary drivers, the two-barrel carburetor available after 1976 (on the Volare/Aspen) and in Australia.

Engine Year(s)
Available
Compression
Ratio
Horsepower @ RPM
(see note)
Torque  (lb-ft) @ RPM
(see note)
170 1963 8.2 to 1 101 @ 4400 155 @ 2400
170 1964-1966 8.5 to 1 101 @ 4400 155 @ 2400
170 1967-1969 8.5 to 1 115 @ 4400 155 @ 2400
198 1970-1971 8.4 to 1 125 @ 4400 180 @ 2000
198 1972 8.4 to 1 100 @ 4400 160 @ 2400
198 1973 8.4 to 1 95 @ 4000 150 @ 1600
198 1974 8.4 to 1 95 @ 4000 145 @ 2000
225 1960-1962 8.5 to 1 145 @ 4000 215 @ 2800
225 1963 8.2 to 1 145 @ 4000 215 @ 2400
225 1964-1971 8.4 to 1 145 @ 4000 215 @ 2400
225 1972 8.4 to 1 110 @ 4000 185 @ 2000
225 1973 8.4 to 1 105 @ 4000 185 @ 1600
225 1974 8.4 to 1 105 @ 3600 180 @ 1600
225 1975 8.4 to 1 95 @ 3600 170 @ 1600
225 1976 8.4 to 1 100 @ 3600 170 @ 1600

Australian Hemi Six

(Compiled by the Allpar staff — see the main Australian Hemi Six engines page)

Six Pack used three Weber carburetors, each having two barrels. Horsepower is SAE standard where “net” is indicated.

The E37 and E48 were the same engine; the E37 had a three-speed transmission, the E48 had a four-speed (both were manual transmissions).

Size Code Carb Setup Horsepower
(
gross)
Torque  
(lb-ft)
C/R
215   1-barrel 140 @ 4,400 200 lb-ft @ 1,800 8.0:1
245   1-barrel 165 @ 4,400 235 @ 1,800 9.5:1
265   1-barrel 203 @ 4,800 262 @ 2,000 9.5:1
265 HP 2-barrel 218 @ 4,800 273 @ 3,000 9.5:1
265 E37/E48 Six Pack 248 @ 4,800 305 @ 3,400 9.7:1
265 E38 Six Pack 280 @ 5,000 310 @ 3,700 10.0:1
265 E49 Six Pack 302@5,600 320 @ 4,100 10.0:1
245 Low C. Carter 2V n/a n/a  
245 High C. Carter 2V 111 @ 4,400 net 190 lb-ft @ 1,800  
265 n/a Carter 2V 146 @ 4,800 net 212 @ 3,000 net  

Eight-cylinder

Horsepower and torque figures prior to 1972 are SAE gross (measured without any accessories connected to the engine). Horsepower and torque figures from 1972 and after are SAE net (measured with all accessories connected to the engine). Not all engines were available with all cars — or even to the general public. Some comparison may be aided by considering the 1971 figures: 318 horsepower was rated both net and gross, 230 gross, 150 net.

For more information, see our pages on the Valiant V8s, and Allpar’s pages on the 383 and 413 and 361

Engine Year(s)
Compression
Ratio
Horsepower
(see Note)
Torque  (lb-ft)
(see Note)
273-2 bbl 1964-1967 8.8 to 1 180 @ 4200 260 @ 1600
273-4 bbl 1965-1967 10.5 to 1 235 @ 5200 280 @ 4000
273-2 bbl 1968-1969 9.0 to 1 190 @ 4400 260 @ 2000
318-2 bbl 1960-1962 9.0 to 1 230 @ 4400 340 @ 2400
318-4 bbl 1960 9.0 to 1 255 @ 4400 345 @ 2800
318-4 bbl 1961-1962 9.0 to 1 260 @ 4400 345 @ 2800
318 1968-1969 9.2 to 1 230 @ 4400 340 @ 2400
318 1970 8.8 to 1 230 @ 4400 320 @ 2000
318 1971 8.6 to 1 230 @ 4400 320 @ 2000
318 1972 8.6 to 1 150 @ 4000 260 @ 1600
318 1973 8.6 to 1 150 @ 3600 265 @ 2000
318 1974 8.6 to 1 150 @ 4000 255 @ 2200
318 1975-1976 8.5 to 1 145 @ 4000 255 @ 1600
340 1968-1970 10.5 to 1 275 @ 5000 340 @ 3200
340 1971 10.3 to 1 275 @ 5000 340 @ 3200
340 1972 8.5 to 1 240 @ 4800 290 @ 3600
340 1973 8.5 to 1 240 @ 4800 295 @ 3600
360 1974 8.4 to 1 245 @ 4800 320 @ 3600
360 1975 8.4 to 1 230 @ 4200 300 @ 3200
360 1976 8.4 to 1 220 @ 4400 280 @ 3200
361 1960 10.0 to 1 310 @ 4800 435 @ 2800
361 1961-1962 9.0 to 1 305 @ 4800 395 @ 3000
383-Ram 1960-1962 10.0 to 1 330 @ 4800 460 @ 2800
383-Police 1961-1962 10.0 to 1 325 @ 4600 425 @ 3200
383 1967 10.0 to 1 280 @ 4200 400 @ 2400
383 1968 10.0 to 1 300 @ 4400 400 @ 2400
383 1969 10.0 to 1 330 @ 5200 410 @ 3600
413 1962 11.0 to 1 410 @ 5400 460 @ 4400

The famous 426 "Hemi" V8 engine (underrated at 425 HP) was available for 1968 Super Stock Darts, and the 440 cid V8 was a limited option in some late 1960s A-bodies as well.

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